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Estudio petrológico de las rocas volcánicas del Pérmico de Gréixer (Pirineo catalán)

Authors: PUGA, E.; FONTBOTÉ, J.M.;

Estudio petrológico de las rocas volcánicas del Pérmico de Gréixer (Pirineo catalán)

Abstract

[ES] Se presenta un estudio sobre las rocas volcánicas de edad permica que afloran extensamente cerca de Greker. a lo lareo del borde de la Zona Axial oirenaica. El estudio al microscopio y los análisis quimicos de las muestras recogidas, junto con los datos de campo, han proporcionado nuevos resultados sobre ladatación y génesis de estas rocas, y sobre sus relaciones en el marco geológico regional y su evolución. Se pone de relieve la muy notable proporción de las ignimbritas en el material volcánico objeto de éste estudio. Igualmente, la predominante composici4n peralcalina de este material. Las hipótesis que pueden explicar tal composición son discutidas.

[EN] A large body of volcanic rocks of Permian age croping out along the southem borderof the Pyrenean Axial Zone near Gréixer has been surveyed. Microscopical study, chemical analyses and field data supply further results on datation of these rocks, their genesis and their relationships regional geological frame and evolution. The very significant pafiicipation of ignimbrites in the surveyed volcanic material is underlined. Conspicuous peralkaline composition of most rocks is emphasized, and the hypotheses for explaining this characteristic are discussed.

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Spain
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Keywords

Estratigrafia, Volcanic rocks, Cataluña, Roques volcàniques, Prepirineus, Petrología, Permian, Rocas volcánicas, Stratigraphic geology, Pre-Pyrenees, Permià, Pérmico

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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